The plural of adelphus; a group of brothers or siblings, or referring to brotherhood and fraternity.
From Greek 'adelphos' (brother), derived from 'a-' (same) and 'delphys' (womb). The term emphasizes the biological connection of siblings born from the same mother.
The word 'adelphi' is hidden in the word 'Philadelphia'—'philo' (love) plus 'adelphi' (brothers)—so the City of Brotherly Love is literally the City of Brother Love!
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